DemoFor public education only. These blocks are built by PisoScan from published PhilGEPS records to show how a budget ledger like CADENA would work. No government agency created or signed them, and this is not an official ledger. How it works
Transaction details
APITransaction action
CITY OF OLONGAPO, ZAMBALES Award a ₱1.7M contract to MONTEONE CONSTRUCTION CORPORATIONCities
Transaction hash:
b7ce70beac335cdcfa4a8acf1c95284d021624a86d8cfad6bd88a9a3df0cedd7
Status:
Included and unchanged
Block:
#4,509 1,504 blocks after it
Position in block:
Transaction 157 of 223
Award day:
Jul 16, 2021 (5 yrs 3 mo ago)
Value:
₱1,724,173.65
Project:
Mabayuan Elementary School and Mabayuan Senior HS
Full record:
Accountability
Bill Sec. 3 and 19Responsible agency:
Accountable officer:
Not stated in the source. PhilGEPS does not publish who certified the award.
Certification:
Not certified No agency signed this record. Under CADENA the accountable officer would sign it with their own key.
Demo signature:
Block #4,509 signature valid Demo key, proves nothing about the governmentPublic key
Linked records: from budget to payment
Bill Sec. 5- 1. AppropriationGAA line item · Sec. 5(b)The award does not say which budget line pays for it.Not published
- 2. Allotment releaseSARO / allotment · Sec. 5(c)(iii)Not published per project. DBM releases SAROs, but not linked to individual contracts.Not published
- 3. Cash allocationNotice of Cash Allocation · Sec. 5(c)(iv)Not published per project.Not published
- 4. Contract awardNotice of Award (PhilGEPS) · Sec. 5(d)CITY OF OLONGAPO, ZAMBALES awarded it to MONTEONE CONSTRUCTION CORPORATION on 2021-07-16.Found
- 5. Contract & progressContract / progress report (DPWH) · Sec. 5(d)No matching DPWH contract record (only DPWH contracts are listed with progress).Not published
- 6. PaymentDisbursement voucher · Sec. 5(c)(viii)Not published. No public source shows how much of this contract has been paid.Not published
- 7. CompletionCertificate of completion · Sec. 5(d)No completion certificate published.Not published
- 8. AuditCOA annual audit report · Sec. 5(e)(iii)COA's CY2024 audit of City of Olongapo gave a "qualified" opinion on its financial statements (not specific to this contract).Partly
1 of 8 documents found, 1 partly. Under CADENA every step would be published within 7 working days and linked to this record.
Tamper test: try changing this record
DemoEdit the amount as if someone quietly changed the record. Your browser re-hashes it and walks up the chain. Nothing is saved.
- 1. Record fingerprint changedstored b7ce70beac…0cedd7now …
- 2. Block Merkle root changedstored 58aa70957d…fe707cnow …
- 3. Block #4509 hash changedstored 720bb2c18c…a0f559now …
Chain intact. The record matches its fingerprint, so the block and every block after it still line up.
Merkle proof (8 steps)
How this one record is tied to the block's Merkle root, without needing the other 222 records. Each step hashes the current value together with the sibling shown.
- leaf b7ce70beac335cdcfa4a8acf1c95284d021624a86d8cfad6bd88a9a3df0cedd7
- 01 L b5b5ef274a88c96691bac55bc363450fa79b2a1e7030842eeeadc61c2f1f0d29
- 02 R c8e18872e20ce6c74357d97982d0453fc8b8871e4c21b5613d5ea88acf601997
- 03 L 62fa430f61503ee89d8f4fed85dcaca1243e4423d6894dfdc0fbe5d68b5a5cbd
- 04 L 1e35a751af3a8198c9044a42d4d7fcef0087b5fcec35db78a88f138300f6766b
- 05 L 26e7d4e580df2aa1a81d6a276ca4b96a574adf598ebbbee0677a6beae4f25752
- 06 R f475f1662016ba9902b924a6dea1fc256f17a236fbc98520d3af2a9b094d836f
- 07 R cfcedd55199075b65092695384be7b5a77ded73a21ce6d117e53f1109e85d776
- 08 L 41a0c9026d05a634daf8465e9d0f328b0bb75f0b4ef25e8fe06d65c1e0505532
- root 58aa70957df8b50ecd4a9a9eb3e5f724bd8ff346f5d1ddf5f4ccb52d4bfe707c